Do all cattle dog nip at heels?

Not all cattle dogs nip at heels, but it is a common behavior among certain breeds, particularly those developed for herding, like the Australian Cattle Dog. This nipping instinct is rooted in their herding background, where they would nip at the heels of livestock to guide them. However, individual temperament and training play significant roles, so some cattle dogs may not exhibit this behavior if properly socialized and trained.